Window or door button



(ModeL) J. F. DINGEE.

WINDOW OR DOOR BUTTON- No. 462,474. Patented Nov. 3, 189 1.

133mm awmwboz/ 0//// 1047 26/66 MZWQ' UNITED STATES PATENT OFFICE.

JOHN F. .DINGEE, OF BEDFORD STATION, NILIV YORK.

WINDOW OR DOOR BUTTON.

SPECIFICATION forming part of Letters Patent No. 462,474, dated November3, 1891,

Application filed May 23, 1891. Serial No. 393,814. (Model-l T0 (tZZwhom it may concern:

Be it known that I, JOHN F. DINGEE, a citizen of the United States,residing at Bedford Station, in the county of VVestchester and State ofNew York, have invented certain new and useful Improvements in Locks;and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled 'in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

This invention relates to certain improve ments in turn-buttons fordoors, gates, shutters, &c., by means of which the button may be lockedand thus held from being turned from its holding relation with theco-operating catch.

The invention consists in the improved locking turn-button for doors,gates, shutters, and the like, and in the arrangements and combinationsof parts, substantially as will be hereinafter set forth, and finallyembodied in the clauses of the claim.

Referring to the accompanying drawings, in which like letters indicatecorresponding parts in each of the figures, Figure 1 is a front.elevation of portions of a door and door f rame, jamb, or post to whichmy improved devices have been applied. Fig. 2 is a sectional view of thesame, taken at line 00. Fig. is a detail plan of a certain lockingmechanism, viewed from the back; and Fig. 4 is a detail of a key whichmaybe employed for unlocking the turn-button.

In said drawings, a indicates the frame or door post 0rjamb;b, the door,gate, or shutter, and c the nosing of the catch;cl, the turn-button, andc the bed-plate on which the button is secured and has its pivotalbearings. The nosing is preferably inclined 011 the under side, as at c,and the button is correspondingly inclined, as at (1, so that when thesaid button is turned into engagement with said nosing there will be awedging action, which will bring the door into proper relation to thejalnb, even though the former be warped,all as will be understood. Onthe under side of the button the same is hollowed out or chainbered, asat f, and the plate 6 is provided with a notch g beneath the button whenthe latter is in itslocked position. The chamber fis closed by a plate7t, which on its inner side provides bearings '2' for a pawl or dog 7',and on its outer or lower side is provided with a pivotal lug 7t, bywhich the plate and the button carried thereby are secured to thebed-plate e, as will be understood upon reference to Fig. 2. The plate his secured to the under side of the button by screws or otherappropriate means, and is provided with an opening Z for the dog or pawlj, which coincides with the notch or recess 9 in the bedplate, so thatwhen the buttonis turned pivotally the dog may drop into the said notchor recess and thus hold the button from f urtherturning, the button thusbeing locked. The dropping of the pawl is automatic and is occasioned bya spring on of any appropriate construction.

\Vithin the handle a of the button, or at the center of the button, thesame is perforated and grooved to receive a slotted keycylinder 0, theslotp therein being adapted to coincide with the groove q of the buttonto allow the insertion of a key 0', Fig. 4. By turning the key the bits8 thereon engage an inclined bearing t on the pawl or dog j, and thusraise the latter from holding engagem cut with the plate a, unlockingthe button, so that it may be turned pivotally from engagement with thenosing.

In operating the device the slotted cylinder is turned with the'end ofthe key or otherwise until the slot therein is brought into coincidencewith the groove, when the key is fully inserted into the look, so thatwhen it is turned pivotally with the cylinder the bit 3 engages theinclined side or bearing of the dog or pawl and raises its catching orlocking end from the recess g, so that the button may then be turned bythe hand from engagement with the nosing.

By employing the end 0 of the button to engage the nosing the same maybe turned back and forth without danger of locking. \Vhen the oppositeend is employed, the catch will drop into engagement with the bed-plateautomatically, unless held by the key, whenever the recess 9 is incoincidence therewith.

IOO

Having thus described the invention, what I claim as new is- 1. Theimproved tn rn-button herein described, having its opposite endsinclined to engage the nosing and provided with a lock adapted to beoperated by a key to prevent the turning of said button, substantiallyas set forth.

2. In combination With the plate 2 and nosing 0, a turn-button centrallypivoted on said plate and having oppositely-projecting ends adapted toengage the nosing, and a lock operating to prevent the button fromturning when one of said ends is in engagement witthe nosing,substantially as set forth.

3. In combination With the plate e and nos- 7' ing, a turn-buttonprovided with a central handle and oppositely-projecting ends, a lock atthe rear of said turn-button, and a key- JOHN F. DINGEE.

Witnesses:

TIMOTHY O. ADAMS, WILLIAM N. HARRIS.

